推荐回答(3个)
建议从京东上买,至少关注一下价格,我之前买的宾得w90,京东就比中关村便宜。当然摊上买也有好处,就是镜头随意搭配,京东这种正规店在diy配件方面比较弱。
噪点是相机素质决定的,你选好型号了,就不用看了。早先相机质量不给力的时候,是要检查ccd的暗点和亮点,即拍一张全黑的照片和一张全白的照片,看上面有没有亮点和暗点。就跟买液晶屏一样。
如果是摊上买的话,外包装就不用检查了,因为肯定拆开过,而且你也绝对看不出来(原厂封条随处都有)
可以看看相机有没有划痕,对照一下序列号,发票上要求写上序列号,保修卡上要求卖家填上对应信息并盖章。
关于配件,主要是电池,检查的不是接触点,主要检查电池上的印刷字,这年头国产电池跟原装电池的差别就在印刷字(比如多少毫安呀,哪里产的呀)上,这也是国人的通病,国人始终不愿意强调细节,因此,原装电池对比非原装的,就是印刷字要精致一些(字体边缘很清晰,颜料颗粒很细),且不易脱落(摩擦掉)。如果要买卡,也不建议在相机摊上买。
噪点ISO值
数码相机的噪点(noise)主要是指CCD(CMOS)将光线作为接收信号接收并输出的过程中所产生的图像中的粗糙部分,也指图像中不该出现的外来像素,通常由电子干扰产生。看起来就像图像被弄脏了,布满一些细小的糙点。我们平时所拍摄的数码照片如果用个人电脑将拍摄到的高画质图像缩小以后再看的话,也许就注意不到。不过,如果将原图像放大,那么就会出现本来没有的颜色(假色),这种假色就是图像噪音。
噪点这个东西不需要检查的,只要您 购买的是大厂的东西一般情况下都是有保障的,生产出来的机器属性可能有些小差异,但是差异不会很大的。
您需要检查的是,购置的机器是否是正品,另外东西是否齐全,包括标配的内容,已经当时购买的时候咨询好经销商是否可以进行全国联保,推荐购买全新正品大陆行货的机器的哦。
宾得K-r ,需要检查的是快门的次数,这个可以通过光影魔术手就可以检测出来。
恭喜加入队伍,一般来说去到正规的店不会有什么问题。
拿到箱子,看看包装是否被拆过,有没有明显的挤压之类
打开看里面的东西是否齐全,机身、保修卡、盒子上的条形码是否一致
机身和镜头是否有手指印等痕迹机身,电池接触点,螺丝这些稍微看看
开机一般都显示设置语言,设置日期,试拍一下,测试一下坏点,对焦,闪光灯
大致也就这样,个人觉得不要太沉迷于商家推荐的附件,建议如果不太懂的话最好和懂行的朋友一起去,自己也在网上做足功课比较好。
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